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Abstract



The Polybox Example using the Framework of Structured Hypothesis Tests


The POLYBOX example is a standard example within the AI-field of model-based diagnosis research. Here, this example is discussed in the perspective of \emph{structured hypothesis tests} (SHT). Even though the SHT framework was primarily developed for handling systems with noise, it has here been shown that it can perform very well in also noise-free systems. In the POLYBOX example, it manage to always give a complete and logically sound diagnosis statement, i.e. a complete and correct list of the possible fault modes. On the contrary, the established FDI framework (i.e. \emph{structured residuals}) only manage to give a subset of the possible fault modes.

Mattias Nyberg

2001

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